Python: Update XML-file using ElementTree while conserving layout as much as possible

Question

I have a document which uses an XML namespace for which I want to increase /group/house/dogs by one: (the file is called houses.xml)

Answer 1

when Save xml add default_namespace argument is easy to avoid ns0, on my code

key code: xmltree.write(xmlfiile,"utf-8",default_namespace=xmlnamespace)

if os.path.isfile(xmlfiile):
            xmltree = ET.parse(xmlfiile)
            root = xmltree.getroot()
            xmlnamespace = root.tag.split('{')[1].split('}')[0]  //get namespace

            initwin=xmltree.find("./{"+ xmlnamespace +"}test")
            initwin.find("./{"+ xmlnamespace +"}content").text = "aaa"
            xmltree.write(xmlfiile,"utf-8",default_namespace=xmlnamespace)